Cup coaster



FIG. 1 is a front perspective view of a cup coaster showing my new design.

FIG. 2 is a front side view thereof.

FIG. 3 is a rear perspective view thereof.

FIG. 4 is a rear side view thereof.

FIG. 5 is a right perspective view thereof.

FIG. 6 is a right side view thereof.

FIG. 7 is a left perspective view thereof.

FIG. 8 is a left side view thereof.

FIG. 9 is a top side view thereof; and,

FIG. 10 is a bottom side view thereof. 

CLAIM The ornamental design for a cup coaster, as shown and described. 